@Somnus I made the following progress: at the main office I installed a pfsense that has a lot of firewall options and at the branch office I used TP-LINK ER605 routers. I made the connection on L2TP...

@Somnus L2TP Client-to-LAN require Working Mode NAT for client, so the router will act as a proxy and the firewall does not see every computer that accesses the Internet from branch office. To be a...

I configured LAN-to-LAN IPsec VPN onER605 Router (main office LAN and branch office LAN). I need all internet traffic from the branch office to be routed to the main office to pass through the main...